Method for attaching a headless rivet nut to a sandwich panel
US8920593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2013 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jun 29, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5373
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The method and device provided herein relates to the field of screwed joints for panels and, in particular, for sandwich panels used in aerospace applications. It relates to a method for attaching a headless rivet nut to a wall of such a panel. The method comprises: injecting a predetermined quantity of adhesive into a blind hole made in the wall of the panel; fitting the headless rivet nut onto a rivet nut setting tool, the rivet nut setting tool comprising a pierced anvil and a mandrel passing through the anvil, the mandrel being screwed into the rivet nut so as to press the rivet nut onto the anvil; positioning the headless rivet nut in the blind hole, the anvil coming to press against the wall of the panel; setting the rivet nut so as to squeeze the wall of the panel between the anvil and a flange formed by deformation of the rivet nut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.